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4XJU

Crystal structure of the NanB sialidase from streptococcus pneumoniae in complex with 4-acetamido-2-fluoro-3-hydroxy-6-[1,2-dihydroxyethyl]-7,8-dioxabicyclo[3.2.1]octane-1-carboxylic acid

Functional Information from GO Data
ChainGOidnamespacecontents
A0004308molecular_functionexo-alpha-sialidase activity
A0005737cellular_componentcytoplasm
A0005975biological_processcarbohydrate metabolic process
A0006689biological_processganglioside catabolic process
A0009313biological_processoligosaccharide catabolic process
A0016020cellular_componentmembrane
A0016787molecular_functionhydrolase activity
A0016798molecular_functionhydrolase activity, acting on glycosyl bonds
Functional Information from PDB Data
site_idAC1
Number of Residues4
Detailsbinding site for residue DMS A 701
ChainResidue
ATHR251
AGLN494
ATHR657
AHOH1157

site_idAC2
Number of Residues5
Detailsbinding site for residue DMS A 702
ChainResidue
AARG129
AVAL166
AARG310
ASER682
AHOH802

site_idAC3
Number of Residues4
Detailsbinding site for residue DMS A 703
ChainResidue
AASP151
AASP154
AALA214
ASER216

site_idAC4
Number of Residues4
Detailsbinding site for residue DMS A 704
ChainResidue
AALA95
AGLU194
AASN376
ALEU450

site_idAC5
Number of Residues7
Detailsbinding site for residue PO4 A 705
ChainResidue
ALYS98
AASN99
AARG117
AARG193
ALYS335
AASN502
AASP520

site_idAC6
Number of Residues17
Detailsbinding site for residue 19D A 706
ChainResidue
AARG245
AILE246
AARG264
AASP270
AILE326
AASP327
AASP344
AASN352
ATYR489
ATHR539
AARG557
AARG619
ATYR653
ATRP674
AHOH1048
AHOH1078
AHOH907

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsRepeat: {"description":"BNR 1"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues11
DetailsRepeat: {"description":"BNR 2"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues11
DetailsRepeat: {"description":"BNR 3"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues11
DetailsRepeat: {"description":"BNR 4"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsActive site: {"evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsActive site: {"description":"Nucleophile","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

242842

PDB entries from 2025-10-08

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